KOAN Sound ( KOH-ən; named after the word kōan) is an English electronic music production duo from Bristol, consisting of Will Weeks and Jim Bastow.

A track from the Max Out EP is titled "One Hand Clap" – a reference to a well-known kōan with the implied answer of silence. They initially gained recognition as dubstep producers, with earlier popular tracks including "Akira". Some of their many types of music includes glitch hop, neurohop, and Drum & Bass. The duo have since released music on various labels including Inspected Records and Owsla, and have worked with a number of other artists, including producer Asa and singer Ed Sheeran.